Hi,
On 17.08.2012 09:09, friedtj@free.fr wrote:
all my attempts at recording signals from satellites (NOAA POES weather satellites and ISS) have so far failed. For NOAA, I can sometimes get a faint signal, but nothing worth decoding to get a weather map (even with a 25 dB LNA preamp). Now, I have found one web page (cannot remember where) associating the poor receiver sensitivity to the RTL2832U DAGC. I remember seeing on this list that someone had managed to disable this DAGC, but is this functionality avaiable in the gnuradio gr-osmosdr block ?
The DAGC is disabled by default in current librtlsdr, so if you use a recent version you should have no problems. In fact, my reception was fine when I tried it (even without LNA).
See http://rof.li/pic/groundplane/
Regards, Steve